Start Stop Study X-cen Y-cen Obs. Title 11:57:52 12:50:29 EL_loop_plume_SUMER -171.5 -40.0 Diagnostics of polar plumes with SUMER 12:53:31 13:46:07 EL_loop_plume_SUMER -102.4 -40.3 Diagnostics of polar plumes with SUMER